nice shots! i just got a t3i as well. my first prosumer camera and i have a lot to learn.
Have you looked at the Magic Lantern add on? I have been trying to figure out how to download it to my SD card. I sounds like it would be easy, but I must be missing something because I can't get it to load to the camera once I get it on the card.
The camera is fantastic without the Magic Lantern enhancement, but I plan on shooting a lot of video with it and would like to learn it before I take it on a big trip later this year.
never even heard of it. i bought a portrait lens and flash but no modding of the camera yet. going to look it up now.